New innovations in cleantech, carbon management, hydrogen and low-carbon fuels, transportation and other industries require a diverse ecosystem of partners to ensure ideas can be scaled up and commercialized. Those partners range from the startup community, customers, corporations and a variety of financiers who together need to steer innovations through their various stages of growth and deployment. What models of innovation development are proving most effective in supporting technologies applicable to the energy transition? How are players managing the need to establish partnerships, while also maintaining their competitive advantage?